JPS6062007A - Electric field moderating sheet - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (a) Field of Industrial Application This invention relates to a sheet for mitigating an electric field.More specifically, it relates to a sheet for mitigating an electric field. The present invention relates to obtaining a half-containing ?lj field relaxation sheet with a large dielectric constant.

tot Prior Art Conventionally, when high voltage is applied to electric wires, cables, transformers, motors, generators, etc., dielectric breakdown due to a sudden electric field gradient tends to occur, and in order to alleviate the sudden electric field gradient, metal , electric field-reducing plastics are interposed in the form of sheets or films between electrical conductors such as carbon and insulators such as plastics, mica, glass, fibers, and ceramics. jIT+always, 1
It is desirable that the dielectric constant be large in the semi-rod region between the u-only body and the insulator.

All conventional electric field mitigation materials use carbon black, such as Tough 1. There are cloths made of fibers impregnated with carbon black, and sheets and films made of plastics with carbon black uniformly dispersed in them. However, in the former case, there are disadvantages such as poor impregnation of Rikiichi Bomb Black and easy absorption of moisture, while in the latter case, a large amount of (
Since carbon black, which is an inorganic substance (usually 10 to 40% by weight), is mixed, there is a drawback that mechanical strength is insufficient.

? 9. Purpose of the Invention The object of the present invention is to obtain a semiconductive sheet with a high dielectric constant suitable for electric field relaxation.

2) Inventive sliding electric conductor This invention relates to 7,7.8.8-tetracyanoquinodimethane, a pyridinium cation, a quinolinium cation,
Zenazinium cation, acridinium cation, phenanthrolium cation, benzothiazolium cation, benzimidazolium cation, tetrathiafulvalene, piperazinium cation, phosphonium cation, arsonium cation, ammonium cation and cyanine dye cation The present invention provides an electric field relaxation sheet in which a semiconductive charge transfer complex with a cation selected from the following is adsorbed or adhered to a fibrous material.

Examples of the warp and fibrous material in this invention include natural or synthetic monofilaments such as cellulose, acetate, hemp, cotton, polyethylene terephthalate, nylon, and vinylon, or spun products thereof, nets, gauze, and woven fabrics.

The semiconductive charge transfer complex adsorbed or attached to the fibrous material used in this invention includes 7.7.8.8-tetracyanoquinodimethane (hereinafter abbreviated as TONQ), pyridinium cation, quinolinium cation, and zenadium cation. nium cation,
acridinium cation, phenanthrolium cation, benzothiazolium cation, benzimidazolium cation, tetrathiafulvalene, piperazinium cation, phosphonium cation, arsonium cation,
It is a complex consisting of ammonium cations or cyanine dye cations.

The above TONQ is J, A, O, S, Vol-84, 3
1, as described on pages 370-3374 (1962).
It can be produced from the condensation product of 4-cyclohexanedione and malonitrile, and the TONQ salt is J, A, O, S,
Vol.

84, pp. 3374-3387 (1962) and T.
,O,P,.

Vol. 51, pp. 377-382 (1969).

The pyricnium cation TONQ salt of this invention has the general formula (where n is 1 or 2, R is a hydrogen atom or a lower alkyl group, preferably a hydrogen atom, a methyl group or an ethyl group).

The same applies below. ), the quinolinium cation T(1!NQ salt is represented by the general formula, the phenazinium cation TONQ salt Gi is represented by the general formula, the acridinium cation TONQ salt Gi is represented by the general formula, and the quinolinium cation T(1! Lolium force chain A-T(!NQ salt is shown by the general formula, benzothiazolium cation TC~Q salt is shown by the general formula, benzimidazolium cation 'I'ONQ
The salt is represented by the general formula it, the tetrathiafulvalene TONQ m is represented by the general formula, the piperazinium cation '['ONQ salt is represented by the general formula [PR4]''・TaaQ;, and the arsonium cation TONQ salt is is represented by the general formula %, ammonium cation T O11Q salt is represented by the general formula %, and cyanine dye cations, such as TONQ salt whose nitrogen-containing heterocycle is quinoline, are represented by the general formula % (formula %). R', R'' is an alkyl or alkoxyl group,
m represents an integer from 0 to 3; cyanine (rn = Q-containing carbocyanine (IIl = IJ), dicarbocyanine (m-
2 can be mentioned. The above semiconducting path transfer complex was added to various solvents at a predetermined % concentration (
After dispersing or dissolving at a concentration of usually 0.1 to 30%, the fibrous material is sufficiently immersed in these dispersions or solutions, or the dispersion or solution is applied to the fibrous material. The electric field relaxing sheet of the present invention can be obtained by spraying the mixture uniformly with a sprayer and then thoroughly drying.

The fibrous material thus obtained has the above-mentioned TCjNQ inside and/or on the surface of each vehicle υ11t constituting the fiber.
It is formed by adsorbing or adhering complex molecules, and the TONQ complex is uniformly adsorbed or adhering to the fiber as a whole.

Examples of the present invention will be described in detail below, but the present invention is not limited thereto.

(e) Examples Example 1 Quinolinium T (IQ, complex (
(Dissolve salt to a specified Ω degree, add nylon P,
↓After soaking the fibers for 6Δ, they were dried and adsorbed. The fathom 111 rate and tM IIL rate of the sheet thus obtained are shown in FIG. (The numbers in the figure indicate the concentration of the above TONQ salt, (1) is 0.1, F2+ is 0.5, (3
) is 1.0, (4) is 10, (5] is 30%,
(6) is obtained by bath dissolving tetrabutylammonium TONQ and a complex salt in dimethylformamide to give a concentration of 10%, and (7) is a mixture of diethylquinocyanine 'Il'ONQ in dimethylformamide: 1. Add salt jJ'i'L1
The temperature is 0% and the temperature is 3 degrees. As is clear from Figure 1, what is the specific resistance? T? , is a semiconductor region (10~IOΩcm) between an Hg body and an insulator, and has a dielectric constant ε
It can be seen that the value is as large as 20 to 200, and that it is very excellent as an 11-likelihood relaxation sheet.

(4) Effects of the Invention As described above, the electric field rice brazing sheet of this invention provides high effects, especially when the bonds and fibrous materials are swollen with a solvent.

The fiber substitute obtained in this way is free from problems such as a decrease in mechanical strength and poor impregnation compared to those using conventional carbon black, and can be used as is in sheet form. Furthermore, it can be used by kneading it into polymers, and is suitable for various molded products that require 1111 field relaxation.

[Brief explanation of drawings]

Claims (1)

[Claims] 1, 7,7,8.8-tetracyanoquinodimethane,
Pyridinium cation, quinolinium cation, zenadinium cation, acridinium cation, phenanthrolium cation, benzothiazolium cation, benzimidazolium cation, tetrathiafulvalene,
A sheet for mitigating an electric field formed by adsorbing or adhering to a fibrous material a semiconductive charge transfer complex with a cation selected from piperazinium cations, phosphonium cations, ammonium cations, ammonium cations, and cations of cyanine dyes.